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-rw-r--r--llvm/lib/Target/PowerPC/PPCInstr64Bit.td2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCInstr64Bit.td b/llvm/lib/Target/PowerPC/PPCInstr64Bit.td
index f3c2892423e..cd5f19d1408 100644
--- a/llvm/lib/Target/PowerPC/PPCInstr64Bit.td
+++ b/llvm/lib/Target/PowerPC/PPCInstr64Bit.td
@@ -304,7 +304,7 @@ def MTCTR8loop : XFXForm_7_ext<31, 467, 9, (outs), (ins g8rc:$rS),
PPC970_DGroup_First, PPC970_Unit_FXU;
}
-let Pattern = [(set i64:$rT, readcyclecounter)] in
+let isCodeGenOnly = 1, Pattern = [(set i64:$rT, readcyclecounter)] in
def MFTB8 : XFXForm_1_ext<31, 339, 268, (outs g8rc:$rT), (ins),
"mfspr $rT, 268", SprMFTB>,
PPC970_DGroup_First, PPC970_Unit_FXU;
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